binman: Add a function to check for special section nodes

This appears in two places in the code. Use a shared function instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/tools/binman/etype/fit.py b/tools/binman/etype/fit.py
index f0e3fd1a09..0e9d81b9e8 100644
--- a/tools/binman/etype/fit.py
+++ b/tools/binman/etype/fit.py
@@ -655,8 +655,7 @@ class Entry_fit(Entry_section):
 
             for subnode in node.subnodes:
                 subnode_path = f'{rel_path}/{subnode.name}'
-                if has_images and not (subnode.name.startswith('hash') or
-                                       subnode.name.startswith('signature')):
+                if has_images and not self.IsSpecialSubnode(subnode):
                     # This subnode is a content node not meant to appear in
                     # the FIT (e.g. "/images/kernel/u-boot"), so don't call
                     # fsw.add_node() or _add_node() for it.